Hermann II, Landgrave of Hesse

Hermann II of Hesse was Landgrave of Hesse from 1376 to 1413.

Hermann II, called the Scholar, was born in 1345 in Grebenstein castle, the son of Louis the Junker. Louis the Junker was a son of Otto I, Landgrave of Hesse. Hermann studied in Paris and in Prague. After the death of Otto, the son and heir apparent of Henry II, the latter appointed his nephew Hermann as coruler and heir in 1367.

Source: Wikipedia